CA2681402C - Modification d'un flux binaire code - Google Patents

Modification d'un flux binaire code Download PDF

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Publication number
CA2681402C
CA2681402C CA2681402A CA2681402A CA2681402C CA 2681402 C CA2681402 C CA 2681402C CA 2681402 A CA2681402 A CA 2681402A CA 2681402 A CA2681402 A CA 2681402A CA 2681402 C CA2681402 C CA 2681402C
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Canada
Prior art keywords
coded portion
coded
modified
decoding
arithmetically
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Active
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CA2681402A
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English (en)
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CA2681402A1 (fr
Inventor
Dekun Zou
Jeffrey Adam Bloom
Peng Yin
Oscar Divorra Escoda
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Contentarmor Sas
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Thomson Licensing SAS
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Publication of CA2681402A1 publication Critical patent/CA2681402A1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • G06T1/0035—Output size adaptive watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0053—Embedding of the watermark in the coding stream, possibly without decoding; Embedding of the watermark in the compressed domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

Dans certains modes de réalisation, l'invention concerne différents aspects de modification ou d'utilisation d'un flux binaire codé ou la récupération d'informations en filigrane à partir de données. Dans un mode de réalisation, un flux binaire codé est modifié afin de pouvoir appliquer un filigrane à ce flux binaire codé sans modifier le codage de tout autre élément syntaxique de ce flux binaire. Ceci consiste à identifier les conditions nécessaires à la modification d'un élément syntaxique codé sans perturber l'interprétation d'éléments codés suivants. L'élément syntaxique codé est remplacé par une autre valeur codée si la valeur modifiée génère les mêmes variables de décodage qu'aurait généré la valeur originale. Des modes de réalisation déterminés se concentrent sur des éléments syntaxiques codés au moyen d'un codage entropique, tel que, par exemple, un codage CABAC (codage arithmétique binaire adaptatif basé sur le contexte). Indépendamment du type de codage ou de filigranage, divers modes de réalisation peuvent permettre de récupérer des informations filigranées. Certains modes de réalisation permettent de récupérer des informations filigranées au moyen de données de détection et d'informations de caractéristiques.
CA2681402A 2007-03-23 2007-11-02 Modification d'un flux binaire code Active CA2681402C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US91970207P 2007-03-23 2007-03-23
US60/919,702 2007-03-23
US93463407P 2007-06-14 2007-06-14
US60/934,634 2007-06-14
PCT/US2007/023172 WO2008118145A1 (fr) 2007-03-23 2007-11-02 Modification d'un flux binaire codé

Publications (2)

Publication Number Publication Date
CA2681402A1 CA2681402A1 (fr) 2008-10-02
CA2681402C true CA2681402C (fr) 2016-02-16

Family

ID=39106118

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2681402A Active CA2681402C (fr) 2007-03-23 2007-11-02 Modification d'un flux binaire code

Country Status (9)

Country Link
US (2) US9299120B2 (fr)
EP (1) EP2130173B1 (fr)
JP (1) JP5277180B2 (fr)
KR (1) KR101398534B1 (fr)
CN (1) CN101636761B (fr)
BR (1) BRPI0721427B1 (fr)
CA (1) CA2681402C (fr)
MX (1) MX2009010182A (fr)
WO (2) WO2008118146A1 (fr)

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Also Published As

Publication number Publication date
US8358703B2 (en) 2013-01-22
WO2008118145A1 (fr) 2008-10-02
EP2130173A1 (fr) 2009-12-09
KR101398534B1 (ko) 2014-05-27
BRPI0721427A2 (pt) 2014-02-25
CN101636761A (zh) 2010-01-27
CN101636761B (zh) 2013-07-24
US20100169349A1 (en) 2010-07-01
US9299120B2 (en) 2016-03-29
WO2008118146A1 (fr) 2008-10-02
CA2681402A1 (fr) 2008-10-02
KR20100014902A (ko) 2010-02-11
JP2010522470A (ja) 2010-07-01
EP2130173B1 (fr) 2019-01-02
MX2009010182A (es) 2009-10-12
US20100027684A1 (en) 2010-02-04
BRPI0721427B1 (pt) 2019-01-15
JP5277180B2 (ja) 2013-08-28

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